OK, I suppose until a kitchen that cleans itself is invented none will be truly hassle free but what I'm about to describe is close. If life revolves around the kitchen, why not make it easy as pie?
Last time I described ideal space and height allowances and this post concerns function, the primary features to look for in major appliances and fixtures.
This is Delta's touch faucet but every manufacturer now makes both touch and motion activated, many offer both in the same fixture, and at a variety of prices.
Every appliance or fixture you put into your kitchen should cater to effortlessness. Each should promote user efficiency and ease. We want to minimize lifting in favor of sliding, avoid reaching, stooping or any potential off balance movement preferring instead everything close at hand or easily accessible.